1966 Topps Don Landrum variation question

kidsox

I'm sure this has been discussed but I just inherited this card. Mine has "button on pants." The pop report also lists "no button on pants" and "see varieties."
What are the "varieties"?
Is mine rare? It would probably grade a PSA 7, 8 if I'm lucky.
SMR lists the scarce one as #43b, whatever that means, but it's not worth much
Thanks.

bishop

Full button, partial button and no button. 43B is the partial. Most likely the button involved the initial run, the partial an attempt at correction, and then a second correction run. The partial is probably the rarest, but may be the least recognized or sought after